The JVM for RISC-V

on YouTube ↗45m

" summary

Overview of RISC-V support in OpenJDK 19: what parts of the JVM have been ported and how complete the support is. Performance evaluation of the JDK port on RISC-V, including methods used to find JVM performance issues and concrete examples of problems discovered and fixed. Useful for developers planning to move their stacks to new hardware platforms.

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" chapters (21)

1. 0:00Introduction
2. 1:28What is Zinccor
3. 3:15RISC-V architecture
4. 5:06RISC-V instruction sets
5. 6:56JDK support on RISC-V
6. 8:03Hardware overview
7. 9:12OpenJDK RISC-V support
8. 10:58RISC-V app profiling
9. 12:25Future RISC-V extensions
10. 14:39Testing methodology
11. 17:34Memory test results
12. 21:27Copy performance improvements
13. 22:51Floating Point min/max issues
14. 27:09Final test results
15. 28:39Memory alignment
16. 30:25Emulating unaligned access
17. 33:18Generated code issues
18. 35:29Interpreter bug fixes
19. 36:52Conclusion and outlook
20. 39:20JDK ports to RISC-V
21. 41:04Q&A

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